Laptop Sony Vaio VGN-SZ220 uses Core Duo T2400 1.83GHz central processor unit, and notebook Sony Vaio VGN-SZ220 uses Core Duo T2300 1.6GHz CPU.
We prefere 15.4 inch wide screen size at model R55.G24 than 13.3 built at model Vaio VGN-SZ220.
On both Vaio VGN-SZ220 and R55.G24 there is maximum screen resolution of 1280x800.
Quantity of RAM memory was 1GB on both Sony Vaio VGN-SZ220 and BenQ R55.G24.
Vaio VGN-SZ220 allows maximum 2GB RAM - higher than R55.G24 (-1GB RAM).
The RAM memory in use on both laptops is DDR2.
Vaio VGN-SZ220 is significantly lighter with its 1.86kg weight, than R55.G24 with 2.8kg.
Nvidia Go 7400 is built-in video card on both notebooks.
Graphic cards on both owns 128MB of video memory.
Sony Vaio VGN-SZ220 had more storage for files (like mp3, avi) on its hard disk.
Bluetooth exists only on BenQ R55.G24 model and you might need it for pictures on your camera or mobile phone.
Infrared is missing on Sony Vaio VGN-SZ220.
These models have firewire (IEEE 1394) communication device embedded.
These laptops have PCMCIA.
Modem is built in both laptops.
Both notebooks have cardreaders.
They don't have DVI for new TFT monitors.
Internet telephony is better with web camera but any of these laptops hasn't one .
Vaio VGN-SZ220 drives XP Media Center and R55.G24 drives XP Home operating system.
Only Sony Vaio VGN-SZ220 has special software pack : Works 8.5.
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